Honestly? Ace-King (A♠ K♣) is often called the most dangerous hand in poker.
Not because it’s bad—but because it looks unbeatable, so players get married to it and end up losing big pots when it doesn’t connect. It’s the classic “premium hand that misses the flop” trap.
Pocket Jacks get an honorable mention too—great until any overcard shows up and suddenly you’re praying.
Cards which are good, but can be dominated, like AQ, KQ, KJ etc. Hitting TP with good kicker can be dangerous.
AK as well - this hand "requires" 3betting/4betting and so can make you all-in or pot-commited (or almost) before the flop against AA or KK...
K6...))) At one time they were the best maps for me))) Incredible coincidences... And then the fairy tale ended, and sometimes I still play pranks on them out of habit...)))